Browse NASA Astronomy Picture of the Day archive by date and media: Archive Discoveries
Browse the NASA APOD archive without needing the exact date first. Filter by media type and keep moving deeper into older images and videos.
M57: The Ring Nebula from Hubble
It was noticed hundreds of years ago by stargazers who could not understand its unusual shape. It looked like a ring on the sky. Except for the rings of Saturn , the Ring Nebula…
NGC 2442: Galaxy in Volans
Distorted galaxy NGC 2442 can be found in the southern constellation of the flying fish, (Piscis) Volans . Located about 50 million light-years away, the galaxy's two spiral arms…
Seeing Titan
Shrouded in a thick atmosphere, Saturn's largest moon Titan really is hard to see. Small particles suspended in the upper atmosphere cause an almost impenetrable haze, strongly…
NGC 4372 and the Dark Doodad
The delightful Dark Doodad Nebula drifts through southern skies , a tantalizing target for binoculars toward the small constellation Musca , The Fly. The dusty cosmic cloud is…
Sh2-308: A Dolphin Shaped Star Bubble
Which star created this bubble? It wasn't the bright star on the bubble's right. And it also wasn't a giant space dolphin . It was the star in the blue nebula's center, a famously…
A Multiple Green Flash Sunset
Yes, but can your green flash do this? A green flash at sunset is a rare event that many Sun watchers pride themselves on having seen. Once thought to be a myth , a green flash is…
Aurora Over Arctic Henge
Reports of powerful solar flares started a seven-hour quest north to capture modern monuments against an aurora -filled sky. The peaks of iconic Arctic Henge in Raufarhöfn in…
Wanderers
How far out will humanity explore? If this video's fusion of real space imagery and fictional space visualizations is on the right track, then at least the Solar System. Some of…
Venus and the Da Vinci Glow
On March 23 early evening skygazers could watch Venus and a young crescent moon, both near the western horizon. On that date Earth's brilliant evening star, faint lunar night side…
Outbound Comet ZTF
Former darling of the northern sky Comet C/2022E3 (ZTF) has faded . During its closest approach to our fair planet in early February Comet ZTF was a mere 2.3 light-minutes…
Spiral Galaxy NGC 2841
A mere 46 million light-years distant, spiral galaxy NGC 2841 can be found in planet Earth's night sky toward the northern constellation of Ursa Major . This sharp image centered…
M31: The Andromeda Galaxy
How far can you see? The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy , over two million light-years away. Without a telescope, even…
Dark Nebulae and Star Formation in Taurus
Can dust be beautiful? Yes, and it can also be useful. The Taurus molecular cloud has several bright stars, but it is the dark dust that really draws attention . The pervasive…
M1: The Expanding Crab Nebula
Are your eyes good enough to see the Crab Nebula expand? The Crab Nebula is cataloged as M1, the first on Charles Messier's famous list of things which are not comets. In fact,…
Equinox at the Pyramid of the Feathered Serpent
To see the feathered serpent descend the Mayan pyramid requires exquisite timing. You must visit El Castillo -- in Mexico 's Yucatán Peninsula -- near an equinox . Then, during…
Wolf-Rayet 124
Driven by powerful stellar winds, expanding shrouds of gas and dust frame hot, luminous star Wolf-Rayet 124 in this sharp infrared view . The eye-catching 6-spike star pattern is…
The Medusa Nebula
Braided and serpentine filaments of glowing gas suggest this nebula's popular name, The Medusa Nebula. Also known as Abell 21, this Medusa is an old planetary nebula some 1,500…
Millions of Stars in Omega Centauri
Globular star cluster Omega Centauri , also known as NGC 5139, is 15,000 light-years away. The cluster is packed with about 10 million stars much older than the Sun within a…
Jupiter and Venus Converge over Germany
This was a sky to show the kids. Early this month the two brightest planets in the night sky, Jupiter and Venus , appeared to converge . At their closest, the two planets were…
W5: The Soul Nebula
Stars are forming in the Soul of the Queen of Aethopia . More specifically, a large star forming region called the Soul Nebula can be found in the direction of the constellation…
Rainbow Tree
What lies at the end of a rainbow? Something different for everyone. For the photographer taking this picture, for example, one end of the rainbow ended at a tree. Others nearby,…
Saturn's Hyperion: A Moon with Odd Craters
What lies at the bottom of Hyperion 's strange craters? To help find out, the robot Cassini spacecraft that once orbited Saturn swooped past the sponge-textured moon and took…
3D Bennu
Put on your red/blue glasses and float next to asteroid 101955 Bennu . Shaped like a spinning toy top with boulders littering its rough surface, the tiny Solar System world is…
Orion and the Running Man
Few cosmic vistas excite the imagination like The Great Nebula in Orion . Visible as a faint celestial smudge to the naked-eye, the nearest large star-forming region sprawls…
Viewing discoveries from 2 April 2023 through 10 March 2023.